Answer / awadhesh tiwari

A CSU/DSU (Channel Service Unit/Data Service Unit) is a
digital-interface device used to connect a Data Terminal
Equipment device or DTE, such as a router, to a digital
circuit (for example a T1 or T3 line).

A CSU/DSU operates at the physical layer (layer 1) of the
OSI model. CSU/DSUs are also made as separate physical
products; CSUs and DSUs. The DSU or both functions may be
included as part of an interface card inserted into a DTE.
If the CSU/DSU is external, the DTE interface is usually
compatible with the V.xx or RS-232C or similar serial interface.

Digital lines require both a channel service unit (CSU) and
a data service unit (DSU). The CSU provides termination for
the digital signal and ensures connection integrity through
error correction and line monitoring. The DSU converts the
data encoded in the digital circuit into synchronous serial
data for connection to a DTE device.

Answer / sandeep goud

A channel service unit/digital service unit (CSU/DSU) is a
digital-interface device used to connect a router to a
digital circuit like a T1. The CSU/DSU also provides signal
timing for communication between these devices.

Answer / abhishek khare

CSU/DSU is a hardware device about the size of an external
modem that converts digital data frames from the
communications technology used on a local area network(LAN)
into frames appropiate to a wide-area network (WAN) and
vice versa.

Answer / jitendera sinha

ok here it is csu/dsu

csu=chanel service unit it is a digitla mechnaism that
connect end use equpment to the local digital telephone loop

dsu=data sevice unit this device is used to adapt the
phycial interface on the data terminal equpment for the
transmission facility and also responsble for signal timing

so csu/dsu=so it is a phycial layer device used in WAN
toconvert the cpe signal to what is understood by the
provider switch.it is a device which can be pluged directly
to RJ-45(8 PIN MODULE)and this is also referd as
demarcation point

i am not also 100% satishfied with that article but think
it will help you little.

Answer / zibrayal.s.mulla

csu and dsu are used through dte/dce port compatible, for to
convert digital signals to analog signals...
as far it works to terminate the digital signals.

Answer / ketan

Channel Service Unit/Data Service Unit (CSU/DSU) acts as a
modem and converts digital signals to analog signals.
CSU/DSU recognizes the Layer 1 details of serial link
installed by the telephone companies and connects to the
LAN through a router. A serial cable is used to connect
CSU/DSU to the router.

if i had a video conferencing device why should it is needed to configure a static IP for that,will it not work on the local lan.

2 Answers   HCL,

What is the size of ipv6?

0 Answers  

Which statement should you use to deny FTP access (only) from network 210 93 105 0 to network 223 8 151 0? A. access list 1 deny 210 93 105 0 0 0 0 0 any eq ftp access list 1 permit any B. access list 100 deny tcp 210 93 105 0 0 0 0 255 223 8 151 0 0 0 0 255 eq ftp C. access list 100 deny ip 223 8 151 0 0 0 0 255 any eq ftp access list 100 permit hp any any D. access list 100 deny tcp 210 93 105 0 0 0 0 255 223 8 151 0 0 0 0 255 eq ftp access list 100 permit ip any any

1 Answers  

What is the default bandwidth size of t1 routers?

0 Answers  

My ccna certification is allready expried but I could not apper the ccnp exam due to some personal problem. Currently i am working as network administrator .Can it create any problem for my next job . and how can i apper he ccnp exam. Please help me and give me what is the solution.

1 Answers   PCS,

Given the following IP address from the Class C address range 192.168.21.12. Your network plan needs addresses for 28 small prkps Each office uses its own shored. The network design specifies that you confound for five bits of subnetting. When you confound for this in Cisco IOS software which shored mask should you use? A. 255.255.0.28 B. 255.255.255.0 C. 255.255.255.28 D. 255.255.255.248 E. 255.255.255.252

1 Answers  

comparative networking features windows linux

1 Answers  

Which router command allows you to view the entire contents of all access lists? A. Router# show interface B. Router> show ip interface C. Router# show access-list D. Router> show all access-list

3 Answers   jetking,

What command can be used to test IPX connectivity? A.) Ping 2e.000.0045.8923 B.) Ping 192.168.100.1 C.) Ping ipx 2e.0000.0045.8923 D.) Ipx ping 2e.0000.0045.8923

4 Answers  

Difference between routed and routing protocols not difference between protocol between those.

3 Answers   HCL, TCS,

You just entered the following command_Router(config#) line console 0 Which operation is most likely to follow? A. Confound terminal type B. enter protocol parameters for a serial line C. create a password on the console terminal line D. establish a terminal type 4 connection to a remote host E. change from configuration mode to console privileged mode

10 Answers   Intel, Quark, Wipro,

What is the bit length and expression form of a MAC address? A. 24 bits expressed as a decimal number B. 24 bits expressed as a hexadecimal number C. 36 bits expressed as a binary number D. 48 bits expressed as a decimal number E. 48 bits expressed as a hexadecimal number

2 Answers